A synthetic 43-residue polypeptide supplied as a stable, high-purity lyophilized powder for in-vitro laboratory research. Synthesized in the USA and independently verified to ≥99% purity, with a lot-matched certificate of analysis in every order.
TB-500 is a synthetic 43-residue polypeptide — a defined chain of 43 amino acids — supplied as a reference material widely catalogued in laboratory research.
PeptSafe synthesizes it domestically and supplies it as a white lyophilized (freeze-dried) powder, sealed under vacuum in a single-use vial. Each batch is built to a ≥99% purity standard and confirmed by an independent laboratory before it ships.
Every vial is labeled with a lot number that matches its certificate of analysis, so the exact identity and purity of the material you receive is documented — not assumed.
Sold strictly as a reference material for in-vitro laboratory research. Not for human or veterinary use, and not intended to diagnose, treat, cure, or prevent any condition.
Identity is confirmed by mass spectrometry and purity by HPLC, performed by an independent third-party laboratory on every production lot.
The certificate of analysis ships in the box and is available on this page. The lot printed on your vial matches the lot on the certificate, so verification is one-to-one.
If the material you receive doesn't match the purity documented on its COA, we'll replace it or refund you in full under the PeptSafe purity guarantee.
Store the sealed lyophilized vial at −20°C, protected from light and moisture. Kept this way, the powder is stable for extended periods.
Handle in a controlled laboratory environment using appropriate protective equipment, consistent with standard reference-material practice.
Handling and storage information is provided for laboratory research purposes only and is not guidance for any use in humans or animals.
On purity, packaging, and shipping.
≥99% purity, COA in every box, and US shipping in about 3 days.